Hi Nicolin, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.11-rc5 next-20240826] [cannot apply to joro-iommu/next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Nicolin-Chen/iommu-arm-smmu-v3-Issue-a-batch-of-commands-to-the-same-cmdq/20240826-150025 base: linus/master patch link: https://lore.kernel.org/r/77da90f2e9c0352ae254825e5ec788589bacc780.1724453781.git.nicolinc%40nvidia.com patch subject: [PATCH v13 08/10] iommu/arm-smmu-v3: Add in-kernel support for NVIDIA Tegra241 (Grace) CMDQV config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20240827/202408270546.xsCRcuPC-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 08e5a1de8227512d4774a534b91cb2353cef6284) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240827/202408270546.xsCRcuPC-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408270546.xsCRcuPC-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:186: warning: Function parameter or struct member 'dev' not described in 'tegra241_cmdqv' vim +186 drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c 159 160 /** 161 * struct tegra241_cmdqv - CMDQ-V for SMMUv3 162 * @smmu: SMMUv3 device 163 * @base: MMIO base address 164 * @irq: IRQ number 165 * @num_vintfs: Total number of VINTFs 166 * @num_vcmdqs: Total number of VCMDQs 167 * @num_lvcmdqs_per_vintf: Number of logical VCMDQs per VINTF 168 * @vintf_ids: VINTF id allocator 169 * @vintfs: List of VINTFs 170 */ 171 struct tegra241_cmdqv { 172 struct arm_smmu_device smmu; 173 struct device *dev; 174 175 void __iomem *base; 176 int irq; 177 178 /* CMDQV Hardware Params */ 179 u16 num_vintfs; 180 u16 num_vcmdqs; 181 u16 num_lvcmdqs_per_vintf; 182 183 struct ida vintf_ids; 184 185 struct tegra241_vintf **vintfs; > 186 }; 187 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki